Users receive these pop-ups and events when they install Alexa Toolbar on their Internet Explorer or Alexa Sparky (or SearchStatus, etc.) plug-in to Mozilla Firefox.
Alexa toolbars are recognized Trackwares (named as Trackware.Alexa) by Symantec Security Response. They gather Internet browsing and search information and submit this information to Alexa.

Resolution:

· Log in to the Symantec Endpoint Protection Manager (SEPM) console.· Click on the Policies tab.

Click on Centralized Exceptions under View Policies.Click on Add Centralized Exceptions Policy under Tasks.Click on Centralized Exceptions > Click on the Add button > Security Risk Exceptions > Known Risks.Check the box next to 'Trackware.Alexa'.Check the box next to 'Log when the security risk is detected'.Click on OK to save the policy.

· Click on the Policies tab.

Click on Intrusion Prevention under View Policies.Click on Add anIntrusion Prevention Policy under Tasks.Click on Exceptions > Click on the Add button > Hold down the Ctrl key and click on 21631 and 21632 > Click on the Next button.Change the Action drop-down selection to 'Allow' and the Log drop-down selection to 'Log the traffic.'Click on OK and then OK again to save the policy.